package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import java.util.Set;

import com.sky.entity.Dish;
/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;
    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品, {}", dishDTO);
        dishService.saveWithFlavor(dishDTO);
        //删除缓存数据
        String key = "dish_" + dishDTO.getId();
        cleanCache( key);
//        redisTemplate.delete(key);
        return Result.success();
    }

    /**
     * 菜品分页查询
     *
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 菜品批量删除
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids) {
        log.info("菜品批量删除：{}", ids);
        dishService.deleteBatch(ids);

        //将所有菜品缓存数据清理掉,所有一dish_开头的key
//        Set<String> keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        cleanCache( "dish_*" );
        return Result.success();
    }

    /**
     * 根据id查询菜品
     *
     * @param id 菜品ID
     * @return 包含 DishVO 的 Result 结果
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品：{}", id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 菜品起售停售
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result<String> startOrStop(@PathVariable Integer status, Long id){
        dishService.startOrStop(status,id);
        //将所有菜品缓存数据清理掉,所有一dish_开头的key
        //TODO可以精细清理
        cleanCache( "dish_*" );
//        Set<String> keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        return Result.success();
    }

    /**
     * 修改菜品
     *
     * @param dishDTO 菜品信息DTO
     * @return 通用成功响应 Result
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品：{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //将所有菜品缓存数据清理掉,所有一dish_开头的key
        //TODO 可以精细清楚,如菜品分类修改,肯定某个多了，某个少了，可以值清楚一部分
        cleanCache("dish_*" );
//        Set<String> keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    /**
     * 统一清理缓存数据
     * @param pattern
     */
    public void cleanCache(String pattern){
        Set<String> keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}